Home / 15,242.46-21,019.14-9,268.31

Finding the Fourth Proportional to 15,242.46, 21,019.14 and 9,268.31

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Solution

The fourth proportional to 15,242.46, 21,019.14 and 9,268.31 is: 12,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.46 : 21,019.14 = 9,268.31 : x
  2. Step 2: Convert to fraction form
    15,242.46/21,019.14 = 9,268.31/x
  3. Step 3: Cross multiply
    15,242.46x = 21,019.14 × 9,268.31
  4. Step 4: Simplify right side
    15,242.46x = 194,811,800.36
  5. Step 5: Solve for x
    x = 194,811,800.36/15,242.46
  6. Step 6: Final answer
    x = 12,780.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.